20420042330120 has 32 divisors (see below), whose sum is σ = 45952422405120. Its totient is φ = 8166714325440.

The previous prime is 20420042330099. The next prime is 20420042330201. The reversal of 20420042330120 is 2103324002402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40452482 + ... + 40954161.

It is an arithmetic number, because the mean of its divisors is an integer number (1436013200160).

Almost surely, 2^{20420042330120} is an apocalyptic number.

20420042330120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20420042330120 is an abundant number, since it is smaller than the sum of its proper divisors (25532380075000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20420042330120 is a wasteful number, since it uses less digits than its factorization.

20420042330120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81412925 (or 81412921 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20420042330120 its reverse (2103324002402), we get a palindrome (22523366332522).

The spelling of 20420042330120 in words is "twenty trillion, four hundred twenty billion, forty-two million, three hundred thirty thousand, one hundred twenty".